
Document
... • FCQs will take place on Wednesday at the beginning of class. • The last homework set will be out on 4/22 and will be due on Thursday 4/30 (one day later than normal). ...
... • FCQs will take place on Wednesday at the beginning of class. • The last homework set will be out on 4/22 and will be due on Thursday 4/30 (one day later than normal). ...
Document
... resultant force has a non-zero component in the y direction only, then the x and z components of the linear momentum will be conserved since the force components in x and z are zero. Consider now two particles, ma and mb, which interact during an interval of time. Assume that interaction forces betw ...
... resultant force has a non-zero component in the y direction only, then the x and z components of the linear momentum will be conserved since the force components in x and z are zero. Consider now two particles, ma and mb, which interact during an interval of time. Assume that interaction forces betw ...
PowerPoint 演示文稿
... If we have a hydrogen atom with its electron in an excited state (either by light absorption or by heating) the electron may fall down to a lower orbit by emission of light. The electron may fall into any lower orbit, and the energy it loses will be exactly equal to the energy difference between the ...
... If we have a hydrogen atom with its electron in an excited state (either by light absorption or by heating) the electron may fall down to a lower orbit by emission of light. The electron may fall into any lower orbit, and the energy it loses will be exactly equal to the energy difference between the ...
Answer key
... The density of osmium, which is the densest metal, is 22.57 g/cm3. Is a 230g block of metal that measures 1.00 cm 4.00 cm 2.50 cm osmium? Explain. Volume = length x width x height = 1.00 cm 4.00 cm 2.50 cm = 10.0 cm3 230g / 10.0 cm3 =23 g/cm3 The sample is likely to be Osmium. Significant figures li ...
... The density of osmium, which is the densest metal, is 22.57 g/cm3. Is a 230g block of metal that measures 1.00 cm 4.00 cm 2.50 cm osmium? Explain. Volume = length x width x height = 1.00 cm 4.00 cm 2.50 cm = 10.0 cm3 230g / 10.0 cm3 =23 g/cm3 The sample is likely to be Osmium. Significant figures li ...
File
... The density of osmium, which is the densest metal, is 22.57 g/cm3. Is a 230g block of metal that measures 1.00 cm 4.00 cm 2.50 cm osmium? Explain. Volume = length x width x height = 1.00 cm 4.00 cm 2.50 cm = 10.0 cm3 230g / 10.0 cm3 =23 g/cm3 The sample is likely to be Osmium. Significant figures li ...
... The density of osmium, which is the densest metal, is 22.57 g/cm3. Is a 230g block of metal that measures 1.00 cm 4.00 cm 2.50 cm osmium? Explain. Volume = length x width x height = 1.00 cm 4.00 cm 2.50 cm = 10.0 cm3 230g / 10.0 cm3 =23 g/cm3 The sample is likely to be Osmium. Significant figures li ...
Document
... Found a boson with mass between 125GeV/C2 and 126GeV/C2 which is “consistent with” the/a Higgs Boson Actually they have also done a lot of other physics but that isn’t very newsworthy. ...
... Found a boson with mass between 125GeV/C2 and 126GeV/C2 which is “consistent with” the/a Higgs Boson Actually they have also done a lot of other physics but that isn’t very newsworthy. ...
Day 2
... from their orbits completely? (C) 1s2 2s2 2p6 3s2 3d3 • Think of the energy required as an atomic transiVon from n0 to nf -‐> ∞: (D) 1s2 2s2 2p6 3s1 3d4 (E) 1s2 2s2 2p6 3p2 3d3 18. The energy required to remove both electrons from the he ...
... from their orbits completely? (C) 1s2 2s2 2p6 3s2 3d3 • Think of the energy required as an atomic transiVon from n0 to nf -‐> ∞: (D) 1s2 2s2 2p6 3s1 3d4 (E) 1s2 2s2 2p6 3p2 3d3 18. The energy required to remove both electrons from the he ...
Lecture 15
... and therefore l = 1/2. This has to be due to a new property since we already know that the l quantum number, which determines orbital angular momentum, is limited to the values l = 0, 1, 2, .... Yet this new property must be due to some kind of angular momentum, since a magnetic moment results. In 1 ...
... and therefore l = 1/2. This has to be due to a new property since we already know that the l quantum number, which determines orbital angular momentum, is limited to the values l = 0, 1, 2, .... Yet this new property must be due to some kind of angular momentum, since a magnetic moment results. In 1 ...
Smoothed Particle Hydrodynamics (SPH)
... We can find the surface by monitoring the density If the density at a particle deviates too much compared to expected density we tag it as a surface particle ...
... We can find the surface by monitoring the density If the density at a particle deviates too much compared to expected density we tag it as a surface particle ...
Atoms and Nuclei
... • The positively-charged nucleus of an atom occupies a central location. It contains at least 99.95% of the atom’s mass. (It is made up of one of more nucleons, namely protons and neutrons. See below.) • Negatively-charged electrons surround the nucleus, bound to the nucleus by the electrical attrac ...
... • The positively-charged nucleus of an atom occupies a central location. It contains at least 99.95% of the atom’s mass. (It is made up of one of more nucleons, namely protons and neutrons. See below.) • Negatively-charged electrons surround the nucleus, bound to the nucleus by the electrical attrac ...
BALL LIGHTNING AND PLASMA COHESION John J. Gilman
... nitrogen, there are about 0.17 mols / ball.; hence, 2.08 x 1023 particles / ball. This yields an average inter-particle spacing of about 27 D. The ion density is less than the particle density, of course (Anderson, 1981) To get an upper limit for the cohesive energy, since the dipole-dipole interact ...
... nitrogen, there are about 0.17 mols / ball.; hence, 2.08 x 1023 particles / ball. This yields an average inter-particle spacing of about 27 D. The ion density is less than the particle density, of course (Anderson, 1981) To get an upper limit for the cohesive energy, since the dipole-dipole interact ...
Attenuation of gamma particles
... receives depends on how the radiation is attenuated. Radiation that attenuates fast, i.e. loses its energy in a short distance, will give a higher dosage (near the surface) than radiation that attenuates slowly, i.e. loses its energy over a long distance in the material. First we consider how the in ...
... receives depends on how the radiation is attenuated. Radiation that attenuates fast, i.e. loses its energy in a short distance, will give a higher dosage (near the surface) than radiation that attenuates slowly, i.e. loses its energy over a long distance in the material. First we consider how the in ...
Classical Mechanics - PHYS 310 - Fall 2013 HW #... Department of Physics, Southern Illinois University Instructor: Thushari Jayasekera ()
... Department of Physics, Southern Illinois University Instructor: Thushari Jayasekera ([email protected]) Please return it by the 11th of September 2013 ...
... Department of Physics, Southern Illinois University Instructor: Thushari Jayasekera ([email protected]) Please return it by the 11th of September 2013 ...
Appl. Phys. Lett. 106, 171110
... silicon sphere. We also ensured that the change of the angle of incidence did not take strong effect on the scattering resonances’ frequencies The simulated patterns of the lateral electric and magnetic field intensities at the wavelengths of ED and MD resonances are shown in Figs. 3(a)–3(d). The ob ...
... silicon sphere. We also ensured that the change of the angle of incidence did not take strong effect on the scattering resonances’ frequencies The simulated patterns of the lateral electric and magnetic field intensities at the wavelengths of ED and MD resonances are shown in Figs. 3(a)–3(d). The ob ...
Document
... Principal Quantum Number, n • characterizes the energy of the electron in a particular ...
... Principal Quantum Number, n • characterizes the energy of the electron in a particular ...
Quantitative analysis of nanoparticles with EPMA
... all elements of the sample, due to its higher spectral resolution. Moreover, the X-ray interaction cross section is larger compared to TEM-EDX, since the EPMA works with a considerably smaller acceleration voltage resulting in a higher X-ray signal. Since the spectrometer signal in EPMA is very sens ...
... all elements of the sample, due to its higher spectral resolution. Moreover, the X-ray interaction cross section is larger compared to TEM-EDX, since the EPMA works with a considerably smaller acceleration voltage resulting in a higher X-ray signal. Since the spectrometer signal in EPMA is very sens ...
Electron scattering

Electron scattering occurs when electrons are deviated from their original trajectory. This is due to the electrostatic forces within matter interaction or, if an external magnetic field is present, the electron may be deflected by the Lorentz force. This scattering typically happens with solids such as metals, semiconductors and insulators; and is a limiting factor in integrated circuits and transistors.The application of electron scattering is such that it can be used as a high resolution microscope for hadronic systems, that allows the measurement of the distribution of charges for nucleons and nuclear structure. The scattering of electrons has allowed us to understand that protons and neutrons are made up of the smaller elementary subatomic particles called quarks.Electrons may be scattered through a solid in several ways:Not at all: no electron scattering occurs at all and the beam passes straight through.Single scattering: when an electron is scattered just once.Plural scattering: when electron(s) scatter several times.Multiple scattering: when electron(s) scatter very many times over.The likelihood of an electron scattering and the proliferance of the scattering is a probability function of the specimen thickness to the mean free path.